WK-312S Tube Expander

The WK-312S Tube Expander is a professional expansion tool developed for HVAC and refrigeration technicians who need precise and reliable tube expansion for larger copper pipe sizes. It allows the ends of copper tubes to be expanded smoothly so pipes can be joined directly without additional fittings.

Built for controlled and uniform expansion, the WK-312S helps maintain tube integrity while reducing the number of joints in the system. This improves overall system reliability and minimizes the risk of refrigerant leaks. Its solid construction ensures consistent performance during installation, maintenance, and repair work.

With a working range suitable for common medium to large copper tubing sizes, the WK-312S is an essential tool for professional HVAC and refrigeration service operations.

Key Benefits

Allows direct copper tube connections without couplings
Produces smooth and uniform tube expansions
Reduces leak points in refrigeration and HVAC systems
Supports larger tube sizes for wider applications
Durable construction for professional service use

Specifications

Product Type: Tube Expander
Model: WK-312S
Application: Refrigeration and HVAC copper tubing
Supported Tube Sizes: 1/4″ to 1-5/8″
Metric Range: 7 to 42 mm
Material Compatibility: Copper tubes

Applications

Refrigeration system installations
Air conditioning piping work
Copper tube expansion for HVAC systems
Maintenance and repair service operations
Workshop and on-site professional use

FAQs

What tube sizes does the WK-312S support
It supports copper tubing from 1/4″ to 1-5/8″ and metric sizes from 7 mm to 42 mm

Is the WK-312S suitable for HVAC and refrigeration systems
Yes it is designed specifically for HVAC and refrigeration copper tubing applications

Does this tool reduce the need for fittings
Yes it allows direct tube-to-tube connections without additional couplings

Is the WK-312S easy to operate
Yes it is designed for controlled manual operation with consistent results

Can it be used for professional service work
Yes it is suitable for regular professional installation and maintenance use